4.6C Classifying Triangles by Their Angles

Front

What is an acute triangle?

Back

A triangle where all angles are less than 90 degrees.

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

True or False: An acute triangle has all acute angles.

Back

True.

Front

How do you classify a triangle with angles measuring 30°, 60°, and 90°?

Back

It is a right triangle.

Front

How do you classify a triangle with angles measuring 45°, 45°, and 90°?

Back

It is a right triangle.

Front

How do you classify a triangle with angles measuring 70°, 60°, and 50°?

Back

It is an acute triangle.

Front

How do you classify a triangle with angles measuring 120°, 30°, and 30°?

Back

It is an obtuse triangle.

Front

What type of triangle has one angle that is 90 degrees?

Back

A right triangle.

Front

What type of triangle has all angles less than 90 degrees?

Back

An acute triangle.